Adjustable tube flaring machine and double-pivoted support therefor



Feb. 9, 1960 A R. LAN DIS 2,924,263

ADJUSTABLE TUBE FLARING MACHINE AND DOUBLE-PIVOTED SUPPORT THEREFOR Original Filed March 11, 1955 39 I F/Gi.

I I8 INVENTOR..

3/ g! 24 ALFRED EHLMVDIJ I BY A26).

A. R. LANDIS ADJUSTABLE TUBE Feb. 9, 1960 2,924,263

FLARING MACHINE AND DOUBLE-PIVOTED SUPPORT THEREFOR Original Filed March 11, 1955 2 Sheets-Sheet 2 IN V EN TOR.

ALI-2E0 2. LAND/6 FIG. 2

United States Patent ADJUSTABLE TUBE FLARING MACHINE AND DOUBLE-PIVOTED SUPPORT THEREFOR Alfred R. Landis, St. Johns, Mo., assignor to James R. Kearney Corporation, St. Louis, Mo., a corporation of Delaware Continuation of application Serial No. 493,688, March 11, 1955. This application December 24, 1958, Serial No. 785,547

9 Claims. (c1. 153-81) This application is a continuation of my co-pending application Serial No. 493,688, filed March 11, 1955.

This invention relates generally to flaring machines and more specifically to machines for flaring end portions of tubular structures, the predominant object of the invention being to provide a machine of the type mentioned which is simple in construction and arrangement and is capable of performing its intended function in a highly efficient manner.

Fig. l is a top, plan view of a flaring machine constructed in accordance with this invention and illustrating a source of power for operating the machine arranged in assembled relation with said machine.

Fig. 2 is an enlarged, longitudinal section taken on line 2--2 of Fig. 1.

Fig. 3 is a vertical section taken on line 3-3 of Fig. 2.

Fig. 4 is a vertical section taken on line 4-4 of Fig. 2.

Fig. 5 is a horizontal, fragmentary section taken 0 line 5-5 of Fig. 4.

Fig. 6 is a view similar to Fig. 2 but showing certain parts of the machine in changed positions.

Fig. 7 is a fragmentary, longitudinal section line 7-7 of Fig. 6.

Fig. 8 is a fragmentary section taken on line 8-8 of Fig. 3.

Fig. 9 is a perspective view of one of a pair of jaws which form parts of the improved machine of this invention.

In the drawings, wherein is shown for purposes of illustration, merely one embodiiment of the invention, A designates the improved flaring machine generally. The flaring machine A comprises an outer cylindrical housing 1, within which is disposed for, straight line movement, longitudinally thereof, an inner cylindrical member 2, the outer face of said inner cylindrical member contacting closely with the face of the bore through said outer cylindrical housing 1. The inner cylindrical member has formed in its wall at the top thereof a series of gear teeth in the form of a rack 3 with which mesh the teeth of a partially toothed element 4 that is mounted on a shaft 5, said shaft being supported by a pair of ears 6 which extend'upwardly from the wall of the outer cylindrical housing 1, at opposite sides of a slot 1', with the element 4 disposed between said ears. The partially toothed element 4 is provided with a recessed extension 7 which serves as a socket, and an end portion of an operating handle 8 is screwthreadedly received in said recess of said socket. The opposite end portions of the wall of said inner cylindrical member 2 are of less thickness than is the intermediate wall portion, as is shown to good advantage in Figs. 2 and 6, thus providing annular shoulders 2 and 2 at the points where the wall portions of reduced thickness meet the intermediate wall portion of full thickness.

Disposed within the inner cylindrical member is a drive quill 12 whose forward portion is of tubular formation, as shown at 12, said forward, tubular portion taken on:

ice

of said drive quill having a rear wall from whichexe.

tends rearwardly a shaft 13 which preferably, though not necessarily, is an integral part of said drive quill. The opening in the tubular forward portion of thedrive quill is eccentr'icallyarranged. The shaft 13 is provided withan annular shoulder 15 having an annular groove 16. formed therein in which a snap ring 17 is disposed. The

rear end of the outer cylindrical housing is. closed by a wall 18 which is secured in place by suitable fastening.

devices 18,, the ,wall 18 being provided with a center opening through which said shaft 13 extends. Arranged jin embracing relation with respect to a portion of said shaft 13 is a coil spring 19, one end of. which contacts 1 with said wall 18 and the opposite end of which contactsv with a snap ring 20 that'is disposed in an annular groove formed in the shaft 13. The shaft 13 is provided with a screwthreaded rear end portion 21 of reduced diameter on which is screwthreadedly mounted a multi-faced nut- 22, the various faces of said nut being. curved slightly as is shown at 22' in Figs. 2 and 6, for a purpose to be hereinafter set forth. y

The drive quill 12 is provided at its forward end with an outwardly extended annular flange 12, and disposed between said annular flange and the annular shoulder 2 of the bore of the inner cylindrical member is a needle bearing structure 23, the rollers of said needle bearing structure being in rolling contact with a portion of the circumferential face of the forward portion 12 0f the drive quill 12. Also, a ball bearing. structure is interposed between a portion of the shaft 13 and the inner wall of the rear end portion of the inner cylindrical housing 2, said ball bearing structure being disposed with l its inner raceway located between the annular shoulder 15 of shaft 13 and the snap ring 17, and with the outer raceway of said ball bearing structure 24 located between the annular shoulder 2 of the inner cylindrical housing 2 and a snap ring 25 which is located in an annular groove formed in the wall of said inner cylindrical housing 2. Because of the use of the needle bearing structure 23 and the ball bearing structure 24, it 'is' obvious that the drive quill 12 is supported for free, substantially frictionless, rotation with respect to an inner Disposed within the bore of the forward portion 12 of the drive quill 12 is an eccentric sleeve 26 which .is provided with an outwardly extended annular flange 26.

in its wall an annular groove 27 and a screwthreaded member 28 is screwthreadedly disposed in a screwthread? ed opening 28 formed through the wall of the forward portion 12 of the drive quill 12, said screwthreaded'i.

member 28 having a smooth extension 28 which extends into said annular groove 27 of the eccentric sleeve 26. Arranged within the bore of the eccentric sleeve 26 is a spindle 29 which is provided with a tapered head 29' at its forwardend portion, said spindle 29 being provided, adjacent to its opposite end, with an annular groove in which is disposed a snap ring 31 (Fig. I

6). The spindle 29 is supported for free rotation within the bore of the eccentric sleeve 26 by a pair of needle bearing structures 32 which are interposed between portions of said spindle and portions ofthe bore of the eccentric sleeve 26, as shown to good advantage in Figs. 2 and 6. As shown in Fig. 6, the snap ring 31 overlaps the rearmost of the needle bearing structures 32, and the rear end of the spindle 29 is provided with a recess 33 in which is disposed a ball 34, a portion of said ball projecting from said recess and contacting with a hardened metallic insert 35 which is fixedly located in an opening formed.

Patented Feb. 9, 1960 spam-es in the rear wall of the forward tubular portion 12 of the drive quill 12.

Extended outwardly in opposite directions from the thereofi; andisaid extensions having openings formed therethroughftwhich are alinedwith' the openings 36' -of saidzprojections 36 3 of the outer cylindric'al housing y 1;" Fastening 'devices 40 and 40', which have smooth, elon-f gated shanks that 'iare extended through the openings of the iextensions"39. and the openings of the projections36 are'z rovid'ed Ffor securingsaidgclampstructure 37' to' said outer'gcylindrical housing 1;,

Byareferring to Figs.x 4*and Siit will be noted'th'at therectangular member 38 is provided with an opening 38 said-opening having shoulders 38% which are formed on the .opposit'evertical faces oflsaid opening. The opening 38$.receivesta pair of jaws .41which' are -sh'apedas 4. tion-in which said hand1e-is-shoWn-in Fig: 6; whereby, through cooperation of the teeth of the toothed element 4 and the teeth of the rack 3, the drive quill 12 and the parts associated therewith, will be moved forwardly of the outer cylindrical housing against the force exerted by the coil. spring. 19. which normally, retainssaid .parts. in their retractediposition: shown in :FigL. 211.. .On..such'. fdrwardmovement of the parts of the machine referred to, the forward, tapered... end 129" of the spindle;.'29..l moves against: the end portiongof rtheii-tubular-zelement :and thecause said spindle rotates. in an eccentric manner with the drive quill. 12 theend portion ofthe tubulanelement T. will be flared bysaid tapered-jendij'portion of-ithe-spindle during the eccentric movement "thereof, the. spindle rotating in the opening in the eccentric sleeve 26 during r the flaring operation.

The flaring machine A of the present invention has arranged on the forward faceof. the drive zquill 12 .a series of letters; as shown togood advantage in.Fig.'.3 thesebeing' theletters EI. fB,. A, cg: and .D,. and said :letters are arranged in: .arcuate formationsadjacent 1 to. the. outer. edgt: 0f 1 the annular flange; 26 of -the@ec centric sleeve 26.. These letters: designate respectivelyaw series .ofjscrewthread ed.openings;12E, .12B, 12A, 12C,

shownzin. Fig. 9, said' jaws each havinga semi-circular 9 opening; ile-formed therein which is flared at an 'end' thereof. as indicated. at 41 and each of saidja'ws is provided Eiwith'l oppositely projected extension 42' which provide the jaw-with shoulders 42. The clamp structure 37 includes. a... screwthreaded element 43 which extends screwthreadedly through a 'screwthreaded opening formed thtoughsthe top portion of the rectangular memebr 38' andlthrough abossv43' formed on said mp portion; of saidtrectangular member, said screwthreaded element contacts .zwithtthe upper-one of the pair 'of jaws'41l The" pairl "of -jaws =41 lclamp between them an. end "portion of a tubular elem'entT whose end portion is to'beflared "in" why the machine, and-the shoulders 42' of the jaws en;

gaging theshoulders 38 of the opening 138 of the-rec tangular member 38.

In the use of the improved flaring machine ofthis invention the' bar 44, which forms an integral part of the rectangular member 38,"is gripped in a vise, or is'other wiseengaged in a fixed position, and the fastening id e-j. vice'40" is withdrawn from its effective position; and .the

outer cylindrical housing; and'the parts associated therehavingi'alower 'endportion of reduced diameter which and 12D, formed intheforward portion'12e ofthe drive quill .12. In like manner, the annular flange -26?1of the; eccentric :sleeve .26 .haswformed therethrough a .iplurality of ,screwthreaded. .openings which .areQdesignated; by. the: reference charactersv 26 ,263,16 .26 and 26 these latter openings respectivelyghaving the .-nu merals 1,:. 2,? "3, 5,7 and 4." displayed :closely; adjacent-thereto. The eccentric throw of 'the spindle 29 mayberegu=i latedto flare the end portions of tubulanelements of dif- "ferent; diameters .by merely rotatingtheaeccentric sleeve 26.with respectto the drive quill= 12 so as to bringinto registration different combinations of letters and nume-;

ralsr .As .an'example, if the tubular .memberl whose. end portion is to beflared is 4/8." O.D., theieccentric sleevelis, rotated .to. bring the opening 46% of said sleeve into registration with, the opening 12A of the drive" qui11...andj

' a fastening device ,is screwed. into the .r'egisteredopening s 26 and 12A to secure the eccentric sleeve .26 'in "a1.

fixed position with .respect to. the-. drive quill 112-] In with; are swung about the pivot point provided by the fasteningdevice 40, as shownby broken lines in Fig." 1..

Proper jaws '41 are then arranged in" the opening 38'-"of th'e rectangular 'member 38 i and the tubular element whose-end portion is to be flared with the aidof themachine-A is arranged witha portion thereof interposed between and clamped by said jaws41, and with the ex-'.

trem'e end portions thereof extended rearwardly into the flared portions'41 of the semi-circular openings 41 of said jaws 41; The outer cylindrical housing, and .the"

parts associated therewith," are then swung'back to the position in which they-are shown by full lines :in Fig. 1,

andthe fastening device 40' is replaced in its effective position;

A drill D, or other suitable power meansrwith which, is associated a socket S, is moved into positionwherethe socket S.may be applied to the nut: 22, and thefunction of .the curved faces of said nut 15 to perrnltgthe socket: 7

to befreely passedover the nut. Thejdrill Djs then. 1

set,- in..operation.so as to rotatetherdriveazquill 312:;and

the. operator swings; the. handle-.z8x fromithe werticat -.Iposi tion in which said handle is shown in Fig. 2 to the posi- '7 tric. sleeve 26 is .rotatedwith respect to the: drive quill -to cause the. opening. 263(0f1the eccentric sleeveltqregisterz withithe opening, 12Aof the drive quill, aftenw-hich said eccentricsleeveissecured fixedlyto the .drivequill Wilhfl the. aid .of. the fastening: device r45 .vvhich gis zscrewthread edly disposed in. the :registering .openingsq26 andxllA -a Asa further :example,- if it is desiredto flare the endtofq a.1'? OLD. tube,..openings .26 aHd 12ETWOuld bemade to. register inthesamemanner. .It is IOj bB llIldBISlIOO'd that the .above measurements are intended asan illustrae. 1. tion.. only and. could-be changed .to fit; the specifications. w for any particular machine. I

Having thus described theinvention, what is claimed: and desired .to be secured by .Letters Patent-isz f 1. Afiaring machine comprisingan outer housing; an;. inner housing 'slidably -arranged-therein, .a 5drive; quill I. rotatably arranged within .said inner housing and having Y. an eccentric bore, a.sleeve rotatably arranged withinsaid. bore, .a flaring tool. eccentrically andqmotatably mounted in .said sleeve, means for connectingisaid-udrive;

quill and saidsleeve comprising a plurality, of laperturesqsc formed in, a portion ofsaid drive-quill, {a plurality Ofm.

apertures formed. in. a. portion .of. said. sleeve, and a. cone:

necting clmentwhichfis.received by any. one of theiaper- N tures of the drive quill and anyone ofthe .apertures of. the sleeve, and means for preventing, relative axial move-W ment of said sleeve with, respect to said'drive quill independentlyof 'saidconnecting ,elementi f 21 A" flaring; machine comprising an"oute'r rotatably arranged within said inn r housing and having an eccentric bore, a sleeve rotatably arranged within said bore, a flaring tool eccentrically and rotatably mounted in said sleeve, means for connecting said drive quill and said sleeve comprising a plurality of apertures formed in a portion of said drive quill, a plurality of apertures formed in a portion of said sleeve, and a connecting element which is received by any one of the apertures of the drive quill and any one of the apertures of the sleeve, and means for preventing relative axial movement of said sleeve with respect to said drive quill independently of said connecting element, and means for slidably moving said inner housing.

3. A flaring machine according to claim 2, in which said last-named means comprises a toothed element.

4. A flaring machine comprising an outer housing, an inner housing slidably arranged therein, a drive quill rotatably arranged within said inner housing and having an eccentric bore, a sleeve rotatably arranged within said bore, a flaring tool eccentrically and rotatably mounted in said sleeve, and a work support, said outer housing being attached to said work support by a pair of pivots disposed on opposite sides thereof and selectively manually removable for selective movement of said outer housing with respect to said work support in a plurality of directions.

5. A flaring machine comprising an outer housing, an inner housing slidably arranged therein, a drive quill rotatably arranged within said inner housing and having an eccentric bore, a sleeve rotatably arranged within said bore, a flaring tool eccentrically mounted for free rotation in said sleeve, a Work support having an ear on each side thereof, said outer housing also having an car on each side thereof at the end thereof closest to said work support, each of said ears having a cylindrical aperture formed therein and positioned so that the apertures in both pairs of adjacent ears are simultaneously in alignment only when the machine is in operating position, and a pair of pins having grasping means for easy manual removal thereof inserted in said apertures to maintain them in alignment.

6. A flaring machine comprising an outer housing, an inner housing slidably arranged therein, a drive quill rotatably arranged within said inner housing and having an eccentric bore, a sleeve rotatably arranged within said bore, a flaring tool eccentrically and rotatably mounted in said sleeve, means for connecting said drive quill and said sleeve comprising a plurality of apertures formed in a portion of said drive quill, a plurality of apertures formed in a portion of said sleeve, the bores of certain of said apertures being screw threaded, and a screw threaded connecting element which is received by any one of the apertures of the drive quill and any one of the apertures of the sleeve, and means for preventing relative axial movement of said sleeve with respect to said drive quill independently of said connecting element.

7. A flaring machine comprising an outer housing, an

inner housing slidably arranged therein, a drive quill rotatably arranged within said inner housing and having an eccentric bore, a sleeve rotatably arranged within said bore, a flaring tool eccentrically and rotatably mounted in said sleeve, means for connecting said drive quill and said sleeve comprising a plurality of apertures formed in a portion of said drive quill, a plurality of apertures formed in a portion of said sleeve, the bores of certain of said apertures being screw threaded, and a screw threaded connecting element which is received by any one of the apertures of the drive quill and any one of the apertures of the sleeve, and means for preventing relative axial movement of said sleeve with respect to said drive quill independently of said connecting element, and means for slidably moving said inner housing.

8. A flaring machine according to claim 7, in which said last-named means comprises a toothed element.

9. A flaring machine comprising an outer housing, an inner housing slidably arranged therein, a drive quill rotatably arranged within said inner housing and having an eccentric bore, a sleeve rotatably arranged within said bore, a flaring tool eccentrically and rotatably mounted in said sleeve, a work support, and spring means for urging said drive quill away from said work support, said outer housing being attached to said work support by a pair of pivots disposed on opposite sides thereof and selectively manually removable for selective movement of said outer housing with respect to said work support in a plurality of directions.

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